Gate equipment for railways



C. w. BUTTRICK GATBIQUIPHBNT FOR RAILWAYS Orginal Filed April 17. 1922 July 7, 1925.

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original application alga-April 17,

tended gate.;

Vapplication for patent on railway Patented July 7, 1925.

i `CHARLES WQBUVTTRICK, orSPRINGFIELDQILLINOIS.

GATEzEQUIPMENT FOR RAILWAYS.

1922, serial No.55a6a3. Divided ana'ihisappiiqatimi ined'seiiteiiiper"` i v 24, 1923. seriaiN'o. 664,537. l y,

To all "whom` it may cncernLlj v Be vit known that I, CHARLES W. BUT- TRICK, a citizen 'of the UnitedStates, residing at Springfield, in the countyot Sangamon'and -State of Illinois, vhave'invenft'ed ya new and useful Gate Equipment for Railways, ot' which the following is a specification. Y Y j l The ,invention relates y,to a railway gate equipments suchas areiinstalled at'plates where the krailway crosses streets or roads,

to prevent: travelers onfthe-,street ory road from f attempting tol cross the i tracks when a train is approaching the crossing, .either going or comi-ng. `Y

AThe objects of the inventionareto'provide extensible gates of improved construction, andetfective means for lowering, extending and raising. the gate, at variable speed across the road or street, cropssing the track; and to provide other improved structural details./ f, y

I attain these objects by thehmechanism illustrated lin the accompanying/drawings way` gate equipmentA embodying myinventlon; s.. Fig.4 2 isfan ,enlarged top plan of the eX- Fig. 3'is an enlarged top plan ofthe motor andy thetraincot gears,` used to lower ,c and extend and raise the gate.; vy Fig. 4 is `an enlarged transverse section through the gate, taken on thelline 4,-4 'of Fig. 2;

Fig. 5 isa diagrammatic sideview show- Y ing the lclosed or`extended gate in full'lines,

alsovshowing, in broken lines, the upright-or open position of the gate and an intermediate-position ofthe gate; l l I Fig. 6is a diagrammatic sideview 'of 'one channel bar; and one rack bar actuated by the motor and slidable in the channel4 of the channel bar-to actuate 'the main train'of gears insideone--gate stand; fandFig( 7 is ,a vertical transverse sectionv takenon-"the line 7.-7, of Fig. 6. The same reference numerals designate the same p arts'in all the views. This application a division'of ate equipment, filed `April 17th, 1,922,` lSelgiial Number 533,623. y I haveshown, in

of the drawings,`

a gate stand 16 outside `Vthe track rail`s13; and a Y'gate stand v17 outside the track 'rails 14.V I vhave 'alsofv shown? Convention-allya reservoir 15 containing a supplyofoil under pressure; lpipe lines V21 and'22 alongside the track 14 and communicating with the vreserf voir 15; motors M.; pump-units l27 and28; air domes 136; pipe lines 2,5 andf26 alongside the'trackf13, and pump units-adjacent to the tra'ck14 andservedby thepipelines 21 and 22.V The gates 18v Aand 19 arejopere ated by the respective motors kM ffLfateral lines v23 and 24 connect'the'pipe lines.' Tfwo I series of pump units 20 .areadjacent tothe respective tracks 13 anch-14.KA fEa-eh series comprises a number of doublepumps a number of wheel-actuated levers 112gactuating therespective pumpunits. The' reser-y Voir 15, the Pipelines;21.22.25;@(1126, the pump units 20; the operating/levers112 andthe airdomes 136 allco-opera'te to supply fluid to actu'ate the motors M. The elements named' may be of any vapproved construction; they are shown conventonauyt. and described merely foi. `the purpose of illustratingr means for supplying @fluid to actu'ate the motors. y The 'gate stands are both alike and the mechanism housedin one is the same as the mechanism housed in the other. vEach gate stand .contains an engine or motor M, preferablyof the type setl forth in the parent application, Serial No. '553,623 Vabove noted and a train ofgears-now; to be described-foroperating. thegate.,l y

A 'horizontal' rack 10mi` 80 actuated by the motor M, slides; in achannel bary 82 which is supported on stationary, standards: 81 shown in Figs. 6 and?.

A horizontalshaft 83, transverse `to the housing, is oscillative in bearings 88 (Fig.

3) in the housing. A horizontal shaft 84, parallell to the shaft 83, isurotative inv bearings 85 inthe housing. United gear wheels 86fand 87 are' keyedkon vthe shaft 83. A,4

pinion 89 is lixed Ton the shaft84. The gear 86 engages with andV is actuated by the rackbar 80 during outward slidingi and, during inward slidingvof the rackeb'ar.V The scope of the vlongitudinal `movement'. of. .the rackbar .8()1isv such that each full outward'm'ove- Y ment of the rack will causenthe shaft 83 and' the connected gears 86 and87 to o s'cillate counter-clockwise in an are of approximately `ninety degrees; and each full inward move- `phore; and an eccentric gear carried. by said .my name at Peoria, Illinois, thislth deyv second shaft and co-acting with the eocenof September, 1923. tro gear on said sleeve to effect variable speed of rotation of the sleeve, and conse- CHARLES W BUTTRILK 5 quentrvarable speed of movement of the Witnesses:

semaphore. HILA M. BROWN,

In Witness whereof I have hereunto signed RUDEL -MCKINNEY.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,545,231, granted July 7, 1925, upon the application of Charles lV. Buttrick, of Springfield, Illinois, for an improvenient in Gate vllquipments for Railways, errors appear in the printed specification requiring` correction as follows: Page 1, line 10, for the Word plates read places, and line 53, for Serial Number 533,623 read Serial Number 553,623; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 2d day of March, A. D. 1926.

[SEAL] WM. A. KINNAN,

Acting Uommz'ssz'oner of Patents. 

